High-pressure hand lubricating pump



Aug. 10,1926. 1,595,424

O. B. SATHER HIIGIKI PRESSURE HAND LUBRICATING PUMP Filed Dec. 5, 1924 Patented Aug. 10, 1,926.

UNITED STATES PATENT oFFIcE.

OGE BUDDE SA'LHER, OF MINNEAPOLIS, MINNESOTA.

HIG'H-PIRESSUIRJ HAND LUBRICATING PUMP.

Appucatmnmea nem-,minar 5, 19,24. semina. 754,158.

- yOne form ofthe invention is illustrated in the accompanying drawin which is an elevation partly in section o the machine.

l The handle 1, constitutes the framework of the machine which is in two parts secured together by bolts 2 2.

The stem to the plunger 3, of the pump runs in a slot or guide 4, in the handle.

There is also another slot or guide 5,

in the handle, just below 4, and`f running parallel tb it in which slides a rod,A 6, in wllich there are cog teethcut on the bottom s1 e.

The lever or trigger 7, which' operates the machine hasa round end with cog teeth 8, to engage with `cog teeth cut in rod 6. There is a hole in the levr 9, and a bolt running through the handle and through the au hole in the lever iforms the pivot on which the lever works back and forth and in so doing the co teeth 8,'in lever 7, engages with cog teet in rod 6, moves rod 6, back and forth parallel to plunger stem 3.

plunger stem 3, in the shape of saw teeth.

There is a lug l0, in the rear partf rod v6, with a pin 11, running through it and through rod 6, holding it there loosely lso 40 that it may swing up and down.a

10,l which There is a spring 12, on lug' holds one end 'of it up against plunger stem Y 3, and engaging it with same, so that when lever 7, is pulled it will also draw rod 6, '45 into handle and lug 10, bein fastened to rod 6, will engage withteet in plunger There are notches cut' into one side of' stem 3, and force that to travel in the same direction thereby pushing fthe plunger 13, through cylinder of pump 14, and forcing contents of pump out through the discharge connection 15. v

There is a spring 16, behind lever 7, tol

keep it pushed out 'in charging position so that the-operator will only have to pull it one way, the spring returning 'it to its ori inal position. 4

l hen the leven, or trigger '7, is pulled into handle 1, it forces plunger 13, intopump,- but when the handle comes back the other way lug 10, slips by the saw teeth in plunger stem 3, so that plunger stem only works one way by pulling lever 7. l

For refilling the pump, lug 10, will have to be pushed down so it is disengaged from plunger stem 3, and then the plunger can be pulled back.

By ,reason of the long lever 7, it is possible'toforce lubricants where wanted with great pressure and not' much' physicalveffort on the operatrs part.

I am aware that prior to my inventionl lubricatin pumps have been made with a plunger t of the hand on the plunger stem or havin screw threads cut in the plunger stem an engaging'with threads cut in the rear. part of pump for securing greater pressure. I therefore do notclaim such a combination broadly;but

Il claim:

A lubricating gun having an outlet aty one end, a piston in said gun a rack attached to said piston, a handle attached to the other end of said gun, a spring-pressed rod pivoted in said handle, a gear `formation on said rod',- concentric with saidpivot, a pitman, means-on said pitman for driving said rack in'onedirectionpnly, saidigear ormation engaging said pitman 'tot-"'actuate the piston.

oGE BUDDE '-sATHER, l

at works with a straight push 

